Yeah, we saw that on one we looked at, but ours has the 2 door fridge/freezer, and a 6 inch false panel above. DH thinks there must be a vent to the roof back there somewhere... Do you think your cabinets are full fridge depth?

Thanks all, still trying to convince DH to open it. He took out the false panel in the corner unit by the door and added an open shelf there, but was comfortable doing so because you could see up inside the cabinet first to tell it was empty - unlike the fridge. He wouldn't take the leap of faith. I said the same as Uncle Buck - worst case we recover it, but he wouldn't bite. I'll show him these and see if it helps!